Improvement in milk-coolers



D. W. HULL. Mi1kCoo1er.

No. 217.221. Patented July 8,1879.

Il' u WM. @Me/ff N* PETERS. PHOTO-LITHOGRAPHER, WASHINGTON. D. C,

. which form a part of this specification.

UNITED STATES PATENT QEEICE.

DoUeLAss vv. HULL, or MAINE, NEW YORK.

IMPROVEMENT IN MILK-oo oLERs.

Specification forming part of Letters Patent No. 217,221, dated July 8, 1879; application led May 8,

To all whom it may concern:

Be it known that I, DoUeLAss W. HULL, of Maine, in the county of Broome and State of New York, have invented certain new and useful Improvements in Milk-Coolers; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawin gs, and to letters of reference m arked thereon,

Figure 1 is a top view of my improved milkcooler with the cover thrown back. Fig. 2 is a vertical section on line x w of Fig. 1.

The same letter marks the same part in both iigures.

My invention consists in the peculiar construction of the receptacle for milk-cans, hereinafter described, whereby the coolingchamber is vrendered air-tight and selisealing, and is provided with means for so directing the condensed vapors that they will fall into the chamber near its sides and be diverted fromv the cans, all as hereinafter fully set forth.

lIt is well settled that when milk is confined in a cold chamber from whichthe atmosphere is perfectly excluded 1the cream will more rapidly and completely separate from it.

My receptacle I Jform of Wood7 having any suitable non-conducting packing and a metallic lining.

In the drawings, A marks the walls of the cooling-chamber D, and B'the cover, hinged to the body ath. Around the upper margin of the chamber D is formed a trough, E, into which dips the rim r of the metal-lined cover B. The trough E is to be partly lled with Water or' other suitable liquid., so-that when the cover B is shut down the chamber D will be completely sealed air-tight.

To the lining of the cover B is attached the condenser C, formed of the inclined metallic plates, as shown.

M M are the milk-cans, which are placed in the cooling-chamber D along with a proper quantity of ice to produce the desired refrigeration.

The vapors rising from the milk are con- .densed by coming into contact with the lower side of the condensing-plates C, and run down and fall oli' from its edges near the sides of chamber D, and do not drop into the milk.

I claim- The combination, with the chamber D, pro-l 

